Mark 10: 32-52
Clearly, the disciples didn’t know what they were asking. They probably had images of gilded thrones and fawning masses when they asked Jesus if they could sit with him in the kingdom of God.
But Jesus had his mind on other things. He knew that God’s kingdom had nothing to do with what we get for ourselves, but that God’s kingdom is about what we give to others. And Jesus gave his life for the sake of the whole world. The kingdom that Jesus was thinking about was the cross.
And it wasn’t his disciples who were at his left and right hands in that kingdom. It was two thieves. But at that moment, I’m guessing James and John didn’t want to trade places with those at Jesus’ side.